In the Early Bronze Age, sarsens from the Marlborough Downs, were erected and replaced the blue stones. A
continuous ring of uprights with lintels formed the outer circle while five trilithons (pairs of uprights with a
lintel on top) formed a horseshoe within.
Each stone weighed more than 25 tonnes and had to be transported over 30km (19 miles). It was also an incredible
task to erect the stones, secure them together with sophisticated joints, and shape their rough surface with
stone hammers.
Some of the stones have carvings, looking like daggers and axes. It is also during this period that the Avenue
was built.